Improvements in and relating to magnetic sound recording and reproducing means,申请号GB19500001563-传众专利搜索

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发明名称	Improvements in and relating to magnetic sound recording and reproducing means
摘要
申请公布号	GB666959(A)	申请公布日期	1952.02.20
申请号	GB19500001563	申请日期	1950.01.20
申请人	RAYMOND JOUVE;HENRI KONNE	发明人
分类号	G11B15/34	主分类号	G11B15/34
代理机构		代理人
主权项
地址

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